The expressions capture it all, fitting the challenge so well that I went up a level in scoring despite the technical limitations. Besides, you have to grab the picture in the moment, so you probably didn't have had time to set up more elaborate lighting or even diffuse the flash.

A fun family memory pic, but the flash is harsh, creating sharp shadows. The background's too busy, and the multiple colors clash and distract. In short, this looks like a snapshot. Again, that's fine for memories, but won't score well.